Improvement in grain-drills



s. GRENELL.

Grain-Drill.

Patented Oct. 13, 1863 um. PNOTO-IJTNOGRAFHR WASHINGTON. 0.?v

PATENT FFIQEQ SILAS GRENELL, OF MOKENA, ILLINOIS.

g IMPROVEMENT IN GRAlN- DRILLS.

Specification forming part of Letters Patent No. 40,257, dated October13, 1863.

' that the following is a full, clear, and exact description of thesame, reference being bad to the accompanying drawings, making a part ofthis specification, in which- Figure 1 is a side sectional view of myinvention, taken in the line w 00, Fig. 2 5 Fig. 2,

a plan or top view of the same.

Similar letters of reference indicate corresponding parts in the twofigures.

To enable those skilled in the art to fully understand and construct myinvention, I will proceed to describe it.

A represents a rectangular frame, which rests on an axle, B, the wheels0 O of which may be of any suitable dimensions.

D is a draft-pole attached to the frame A, and E is an inclined board orchute, which is placed in the frame A and works on a pivot, a, whichpasses centrally through its back and elevated part. The front anddepressed end of the board or chute E is suspended from the front end ofthe frame A by rods 1) b, which admit of a lateral vibrating movement ofthe board or chute, and this movement is given it by means of a bent orright-angled lever, F, which issecured in the front part of the frame Aat one side and is connected to the front end of the board or chute atone side by a rod, 0, and is also connected to the crank G of a rotatingshaft, H, by a rod, (1. (See Fig. 2.) The shaft H is placed transverselyon the np-' per part of the frame A, and one of its journals at thecrank end works in a fixed bearing; but the other journal has itsbearing in an adjustable bar, I, which may be raised or loweredsufficiently to throw a pinion, d, on the shaft in and out of gear witha wheel, J, attached concentrically to one of the wheels 0. ,When thepinion d is in gear with the wheel J a rotary motion is communicated tothe shaft H by the forward movement of the machine, and a lateralvibratory movement communicated to the board or chute E. The bar I maybe retained down on the frame A so as to keep the pinion d in gear withthe wheel J, by means of a hook, K; or any other suitable fastening maybe used for the purpose.

On the back part of the frame A there is placed a seed box or hopper, L,having a hole, e, in its bottom, over which a slide, M, works. The frontend of this slide is attached to the lower end of a lever, N, which hasa fulcrumpin, f, in a horizontal arm, g, attached to the front part ofthe seed box or hopper L. The lever N extends some distance above thearm g, and has a spring, 0, bearing against it, said spring having atendency to keep the slide M closed over the opening or hole 0 in thebottom of the seed box or hopper L.

The shaft H has a projection, h, attached to it, which, as said shaftrotates,forces outward the lower part of the lever N and causes theslide M to be moved outward, so as to expose the opening or hole 0 inthe bottom of the hopper L and admit of the escape of seed from saidhopper, the spring 0 throwing inward the slide M and closing the openingor hole 0 each time the projection h on the shaft H leaves or passes thelever N. By this means a reciprocating movement is given the slide M andthe seed discharged on the back elevated part of the board or chute E.

The board or chute E has a series of pins, 6, driven into its upper'surface in rows, the pins of each row being opposite the centers of thespaces of its adjoining rows. These pins serve as scatterers and causethe seed as it passes down the chute to be spread out the wholewidthofthe latter and discharged therefrom in proper broadcast form.'

'1? is the drivers seat, which is attached to a rod, Q, which is securedto the back part of the frame A and projects oyer the board or chute F.

From the above description it will be seen that a very simple andefficient broadcast-seed ing machine is obtained. The parts are veryfew, and the seed as it is disengagedfrom the chute E is in full view ofthe driver, so that in case of any defect in the operation of theseed-distributing mechanism it will be at once seen and rectified.

I would remark that the fulcrum of the lever N may be varied-that is tosay, raised or lowered-so as to vary the length of the stroke of theslide M, and thereby regulate the flow or discharge of the seed as maybe required.

I do not claim separately any of the parts irrespective of thecombination and arrangement herein shown and described.

I claim therefore as new and desire to seplied to the mounted frame A,as and for the cure by Letters Patent- The combination and arrangementof the slide M, hole e in the bottom of the seed box or hopper L, leverN, attached to slide, the Witnesses: shaft H, with projection hattached, spring 0, and the vibrating board or chute E, all appurposeherein set forth.

SlLAS GRENELL.

It. TURNER, I LEVI MOULTON.

